The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2014
Filed:
Feb. 09, 2010
Tetsuya Kojima, Tokyo, JP;
Yoshihiko Kinpara, Tokyo, JP;
Tetsuya Kojima, Tokyo, JP;
Yoshihiko Kinpara, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A power converting apparatus includes a timing signal generator and a phase determination signal generator provided in an ON/OFF signal generating unit as well as a detected current correction unit. On the basis of timing signals ts, . . . and phase determination signals ph, . . . , the power converting apparatus determines detected current values and phases of the detected current values fed from a DC bus current sensor at timings set in accordance with the timing signals and corrects the detected current values idc, . . . for the individual phases obtained at the individual timings during PWM cycles to represent values which would be obtained at reference timing tto thereby reduce errors caused by differences in the current detecting timings for the individual phases.